Question

How do you solve `(5x - 1)^2 = 4/25`?

Answer 1

`x = 3/25` or `x = 7/25`

Explanation:

`(5x-1)^2 = 4/25` => `(5x-1)^2 = (2/5)^2`

=> `5x -1 = +- 2/5`

=> `5x -1 = + 2/5` means `5x= (2/5 +1)` => `x = 7/25`

=> `5x -1 = - 2/5` means `5x= (-2/5 +1)` => `x = 3/25`